Joint Inversion of Surface-NMR and VES

M-21 JOINT INVERSION OF SURFACE-NMR AND VES Abstract 1 The method of Surface Nuclear Magnetic Resonance (SNMR) is a new method in groundwater prospection. Its direct sensitivity to water molecules provides a uniquely new information about subsurface properties. The combination with conventional electric electromagnetic methods here Vertical Electrical Sounding (VES) which are sensitive to the water content via the conductivity in a porous media promises improved aquifer characterization. The new developed inversion scheme is based on Simulated Annealing (SA) a guided random search algorithm. Detailed investigations have been conducted with different inversion and model settings on synthetic data. The processing